import React, { Component } from 'react'
import { nanoid } from 'nanoid'
import { connect } from 'react-redux'
import { createAddPersonAction } from '../../redux/actions/person'

class Person extends Component {

  addPerson = () => {
    const name = this.nameNode.value
    const age = this.ageNode.value
    const personObj = { id: nanoid(), name, age }
    this.props.dispatchAddPerson(personObj)
    this.nameNode.value = ''
    this.ageNode.value = ''
  }

  render() {
    return (
      <div>
        <h2>我是Person组件</h2>
        <input ref={c => this.nameNode = c} type="text" placeholder='输入名字' />
        <input ref={c => this.ageNode = c} type="text" placeholder='输入年龄' />
        <button onClick={this.addPerson}>添加</button>
        <ul>
          {
            this.props.personArr.map((p) => {
              return <li key={p.id}>{p.name}--{p.age}</li>
            })
          }
        </ul>
      </div>
    )
  }
}

export default connect(
  // 映射状态
  state => ({ personArr: state.persons }),
  // 映射操作状态的方法
  { dispatchAddPerson: createAddPersonAction }
)(Person)
